I started to play around with Omnisharp-Roslyn and I was able to make it work with Monaco!
I dont know why but if I make changes to my file Omnisharp doesn't seem to Read / Discover new items...
I tried to configure the file options without success.
I'm out of solutions... What Am I missing here?
I'm using the version 3.5.0-beta.1879 over stdio
If some one came across the same issue.
I manage to make it work using the /filesChanged command using the ChangeType Unspecified